#ifndef _H_FFT_
#define _H_FFT_
#include "define.h"
typedef struct
{	
	float real;
	float imag;
}Complex;

#define FFT_BUFF_SIZE 512
#define FFT_BUFF_SIZE_BITS 9
extern Complex g_fft_stCalBuff[FFT_BUFF_SIZE];
extern void fnFFT_IFFT(float val[][2], float *fir);
#endif
